The Microsoft Exchange Replication service on a Standby Continuous Replication (SCR) target server continually crashes when you enable SCR for a storage group on an Exchange Server 2007 Service Pack 1-based computer

Mobile users whose location is set to New Zealand cannot synchronize an exceptional occurrence after the daylight saving time (DST) update that is described in KB 951072 is installed on an Exchange Server 2007 Service Pack 1 Client Access server (CAS)

Error message after an Exchange Server 2007 Service Pack 1 user replies to a message that has more than 300 recipients in Outlook Web Access (OWA): "Microsoft Exchange issued an unexpected response (500)"

Outlook clients are directed to global catalogs from the wrong domain if you are using a split session configuration to enable Outlook clients to access their mailboxes through an RPC/HTTP proxy server in Exchange Server 2007 Service Pack 1

You still receive unexpected error messages when you run the Test-OwaConnectivity command or the Test-ActiveSyncConnectivity command after you apply hotfix KB954213 on an Exchange 2007 Service Pack 1-based server

Error message when a user tries to perform an address book search by using Outlook Web Access in an Exchange Server 2007 Service Pack 1 environment: “The item that you attempted to access appears to be corrupted and cannot be accessed.”

The EdgeTransport.exe process on a computer that is running Exchange Server 2007 Service Pack 1 crashes when a MIME message that contains iCAL items for a recurring meeting has more than 999 occurrences

When you change the location field of a recurring calendar item to empty in Exchange Server 2007 Service Pack 1, the location field is set to the default value of the recurring series if this recurring item is synchronized on a Windows Mobile device

If a sender requests a delivery receipt in an e-mail message, a delivery status notification (DSN) message is returned that has a blank subject in the body even though the original message contains a subject in Exchange Server 2007 Service Pack 1

Some databases are not mounted on the target server after you use the Move-ClusteredMailboxServer command to transfer a clustered mailbox server (CMS) to an available passive cluster node in Exchange Server 2007 Service Pack 1

A move operation between an Exchange Server 2003-based server and an Exchange Server 2007 Service Pack 1-based server fails if the SimpleDisplayName attribute of a mailbox in the Exchange Server 2003-based server contains a single quotation mark

An error message is returned when a user tries to change a recurring appointment in Office Outlook Web Access that was created in Outlook 2007 in Exchange Server 2007 Service Pack 1

Change in transport rule condition

Update Rollup 9 for Exchange 2007 SP1 includes a change to the “when the Subject field or the body of the message contains text patterns” condition that is used to create a transport rule. Previously, this condition matched any strings that contained the word that was specified. For example, if you defined “change” as the specific word, any strings that contained “change,” such as “Exchange” or “changes,” would be considered a match. Starting with Update Rollup 9 for Exchange 2007 SP1, this condition is matched only by the actual word, where “word” is defined as any group of letters or digits that are surrounded by non-word characters. Non-word characters are characters other than letters or digits.

Given this change, if you intend for an existing rule to match only the actual word, no action is required. Existing rules will be recompiled after Update Rollup 9 or Exchange 2007 SP2 is installed and the Microsoft Exchange Transport service is restarted. However, any rules that are based on the old behavior (pattern match) will not work after Update Rollup 9 is installed. In this case, you must rebuild your transport rules to specify that a subject, body, from address, or header contains text patterns instead of specific words. For example, to obtain a pattern match rather than a word match, a transport rule that contains a "when the from address contains specific words" condition must be changed to "when the from address contains text patterns."

This update rollup does not apply to Exchange Server 2007 release to manufacturing (RTM) version or to Exchange 2007 Service Pack 2 (SP2). The series of update rollup packages for Exchange Server 2007 SP1 is independent of the corresponding series of update rollups for Exchange Server 2007 RTM or Exchange 2007 SP2.